V6 auto conversion question.

My father in law wants to put a Buick 231 in his high hood. Problem is he want it auto too. He found some adpter to bolt to the auto trans(also Buick) but the transfer case front shaft will not clear in a straight line to the front axle. Does anyone know of a more proper adpter to keep the auto? The transfer case is I believe an 20. But not positive. Any links or advise to someone with info?

 

Welcome Drnaline from Ohio.

Can't be much help regarding the problem, but others may chime in, or perhaps hunt around here:
http://www.film.queensu.ca/CJ3B/

Hope this helps.
-Alan

 

doesn't need to be in perfect line with the front axle. The drive line doesn't care if it points a liitle to one side or the other. Your bigger worries will be the short length of the rear driveline.

JB

JB

 

Thanks for the quick reply. The problem with the front is it hits the side of the auto tranny well before you can line it up with the front yoke to hook up the front shaft. Thanks for the link, i'll look.

 

That's what I was going to say Mike. My buddy did that with his '76 CJ5...454 and TH350. He's got the Dana 300 T-Case though. Would that put the shaft farther to the pass side and give him a little more clearance?

 

Commandos used a carrier bearing to miss the auto tranny. I haven't personally seen the pan trick Mike and Lynn are talking about either. I would also be worried about the overall length of the rear driveshaft.

 

Which transmission? I'd be surprised if the TH350 has an interference problem. The Jeepsters had a 2-piece driveshaft with a carrier bearing, but they also used the TH400, which is both longer and fatter than the TH350. Adapting the TH400 can be done, but the rear driveshaft will be reeeealy short (too short IMO).

If you look at the Novak website, they advise shifting the transmission:

Yoke to Pan Clearance

Use of the factory size driveshaft and yoke is recommended. Our adapter design has maximized clearance between the transmission pan and yoke, but it is necessary that you install your GM engine offset 1-1/4" to the driver's side. If you are installing against a factory AMC engine with our #437-AMC adapter kit, your factory engine should already have this proper offset.

http://www.novak-adapt.com/catalog/kit_103.htm

 

Another comment - if you'r using the D20 now, you'd be better off with the stock D18 becasue of the rear driveshaft angles.

 

Thanks you all for the help, you guys get up early, LOL. I'll tell him his options. Suspension lift, notch tranny pan, a diferent adpter. That's a nice piece that Novak adpter.

 

His is using what ever came on it originally? So it may be an 18, i called him this mourning to verify but he had already left to work. He lucked out on the buick motor. A friend of his gave him two complete engines with trannies and the best part is they were both turbo setups, even fired out of either a GNX or Regals?

 

Another option is to use the smaller front driveshaft yolk. I had one on my jeep that I think was a stock item. I might still have it if you Think it will help your situation.